Watch Richard Ambrose and Jonny Phillips quickly construct a building made of concrete canvas—a material that has all the elements of concrete, but is flexible.

The police and the administration claim that public health and safety was a risk by setting up the tents, they say that we are at risk because of our Health and Safety if we were camping, they say that they cannot "watch over us" if we live on campus in a tent.

The police department and the UC Da...